Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_3/rev/18eddda27c3c
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #17996 from mikehenrty/1.3-bug-988737-clear

Bug 988737 - SMS notifications do not clear when launching SMS app after...

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https://hg.mozilla.org/integration/gaia-1_3/rev/3184d63bd102
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 988737 - SMS notifications do not clear when launching SMS app after it's been killed

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https://hg.mozilla.org/integration/gaia-1_3/rev/4f250ede9448
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #17839 from cvan/updated-mkt a=bbajaj

Bug 989470 - Fix MCC/MNC dual SIM detection in Marketplace app
r=julien
(cherry picked from commit 5d81c713215ee1b97996e0bedff87dcd14309eec)
Bumping manifests a=b2g-bump